US PATENT SUBCLASS 431 / 63
.~.~ Combustion sensor establishes "run" feed

Current as of: June, 1999
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431 /   HD   COMBUSTION

18  DF  TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL {26}
62  DF  .~ Of diverse feed or feed rate in starting, e.g., enriching fuel mixture in starting, etc. {1}
63.~.~ Combustion sensor establishes "run" feed

DEFINITION

Classification: 431/63

(under subclass 62) Apparatus in which the burner control structure is shifted to its normal operating condition, i.e.,

"run" position, by means sensing the establishment of combustion.